The present invention belongs to the technical and application field of injection molding machines, and specifically relates to a superposed three-platen multi-functional injection molding machine, comprising a fixed platen and a movable platen. A middle platen is also arranged between the fixed platen and the movable platen, the middle platen and the movable platen are provided with independent mold opening and closing structures, the fixed platen is equipped with a main screw and an injection mold, the movable platen is equipped with an auxiliary screw, a cavity insert C and a cavity insert C injection molded body are arranged between the movable platen and the middle platen, and a cavity insert B and a cavity insert B injection molded body are arranged between the fixed platen and the middle platen. The superposed three-platen multi-functional injection molding machine proposed by the present invention can be used as two single-color injection molding machines, a two-station two-color machine, a two-station injection blow molding machine, or a two-color four-station injection molding machine. One device has multiple functions, greatly improving production efficiency and equipment utilization rate. The whole device has a simple structure, can greatly increase productivity, and reduce equipment energy consumption. The present invention also discloses multiple usage methods of the superposed three-platen multi-functional injection molding machine.

Country Code: CN

Application Number: CN201610063993.6